Casey Lively
/
Nightlight_Seed_Grove_light_sensor
Night light example program utilizing Grove Seed Light Sensor
Diff: main.cpp
- Revision:
- 0:176019ee8c91
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Mar 16 16:28:40 2016 +0000 @@ -0,0 +1,28 @@ +/*Graduated Night light with Seed Grove Ambient Light sensor +Casey Lively +March 2016*/ + +//Read in ambient light sensor with mbed LPC1768 +#include "mbed.h" + +AnalogIn sensor(p20);// +BusOut lights(LED1, LED2, LED3, LED4); + +int main() { + float val; + float threshold = .03; //User specified for night-light mode. Set to .03 for light measurement mode + while(1) { + val = sensor.read(); + + //Uncomment the line below for debugging. + // printf("Sensor reading: %2.2f - %2.2f\r\n", val, (float)(1023-val)*10/val); //print through debug serial connection + + if(val <= threshold) + lights = 15; //set all bus lines to 1 + else + lights = 0; //set all bus lines to 0 + + + wait(0.1); + }//end while(1) +}//end Main \ No newline at end of file